Which outcome directly limits phytoplankton growth after an upwelling event during summer stratification?

💡 Explanation

When summer stratification occurs after upwelling, increased water column stability severely restricts vertical mixing preventing the replenished nutrients from reaching phytoplankton in the euphotic zone. Therefore light limitation results, rather than nutrient depletion which is temporarily resolved by upwelling, nor iron or heavy predation both of which can limit but require independent circumstances.

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